Lighting module

Abstract

A lighting module, comprising a printed circuit board, which on the front side thereof, is populated by at least one light source as well as at least one light sensor; a hollow optical waveguide element, which laterally surrounds the at least one light source circumferentially; and a cover at least for the light sensor, arranged on the printed circuit board externally to the optical waveguide element, it being possible for a window to be located in the optical waveguide element to which window is connected a hollow light channel formed in and/or on the cover which leads to the light sensor.

The invention claimed is: 
     
       1. A lighting module, comprising:
 a printed circuit board having a front side populated by a plurality of light sources as well as at least one light sensor; 
 a hollow optical waveguide element which laterally surrounds all of the light sources on the printed circuit board circumferentially; and 
 a cover at least for the light sensor arranged on the printed circuit board externally to the optical waveguide element, and having a hollow light channel formed in and/or on the cover in communication with the at least one light sensor, 
 wherein the optical waveguide element has a window in communication with the hollow light channel to communicate light from the plurality of light sources to the hollow light channel and the at least one light sensor. 
 
     
     
       2. The lighting module as claimed in  claim 1 , wherein the light channel is formed adjacent to the window, at least in sections, partially by the optical waveguide element and partially by the cover. 
     
     
       3. The lighting module as claimed in  claim 2 , wherein the light channel adjacent to the window, is initially partially formed by the optical waveguide element and partially by the cover and then runs into a volume covered by the cover. 
     
     
       4. The lighting module as claimed in  claim 1 , wherein the optical waveguide element, has at least one reflecting region. 
     
     
       5. The lighting module as claimed in  claim 1 , wherein the window is a cut-out formed in the optical waveguide element. 
     
     
       6. The lighting module as claimed in  claim 1 , wherein the optical waveguide element comprises a light-transmitting, material and is covered by a non-transparent layer, it being possible for the window to be formed by a cut-out in the non-transparent layer. 
     
     
       7. The lighting module as claimed in  claim 6 , wherein the two adjacent parts of the optical waveguide element can be interconnected by at least one latching lock, and wherein the window is formed by the at least one latching lock. 
     
     
       8. The lighting module as claimed in  claim 6 , wherein the optical waveguide element is transparent, and the non-transparent layer is reflecting. 
     
     
       9. The lighting module as claimed in  claim 1 , wherein the optical waveguide element has the basic form of a hollow cylinder. 
     
     
       10. The lighting module as claimed in  claim 1 , wherein the optical waveguide element is electrically conductive, is connected via a lower edge to the printed circuit board and has at least one cut-out at the lower edge. 
     
     
       11. The lighting module as claimed in  claim 1 , wherein the optical waveguide element is a separate component from the cover, and is constructed in at least two parts. 
     
     
       12. The lighting module as claimed in  claim 1 , wherein the two adjacent parts of the optical waveguide element can be interconnected by at least one latching lock. 
     
     
       13. The lighting module as claimed in  claim 1 , wherein the optical waveguide element is integrated in the cover. 
     
     
       14. The lighting module as claimed in  claim 1 , wherein said light sources comprise light emitting diodes. 
     
     
       15. A lighting module, comprising:
 a printed circuit board having a front side populated by at least one light source as well as at least one light sensor; 
 a hollow optical waveguide element which laterally surrounds the at least one light source circumferentially; and 
 a cover at least for the light sensor arranged on the printed circuit board externally to the optical waveguide element, and having a hollow light channel formed in and/or on the cover in communication with the at least one light sensor, 
 wherein the optical waveguide element has a window in communication with the hollow light channel to communicate light from the at least one light source to the hollow light channel and the at least one light sensor, and 
 wherein the window is located in a front third of the optical waveguide element. 
 
     
     
       16. A lighting module, comprising:
 a printed circuit board having a front side populated by at least one light source as well as at least one light sensor; 
 a hollow optical waveguide element which laterally surrounds the at least one light source circumferentially; and 
 a cover at least for the light sensor arranged on the printed circuit board externally to the optical waveguide element, and having a hollow light channel formed in and/or on the cover in communication with the at least one light sensor, 
 wherein the optical waveguide element has a window in communication with the hollow light channel to communicate light from the at least one light source to the hollow light channel and the at least one light sensor, and 
 wherein the window has a vertical extension of at least 10% to 15% of the height of the optical waveguide element. 
 
     
     
       17. A lighting module, comprising:
 a printed circuit board having a front side populated by at least one light source as well as at least one light sensor; 
 a hollow optical waveguide element, which laterally surrounds the at least one light source circumferentially; and 
 a cover at least for the light sensor arranged on the printed circuit board externally to the optical waveguide element, and having a hollow light channel formed in and/or on the cover in communication with the at least one light sensor, 
 wherein the optical waveguide element has a window in communication with the hollow light channel to communicate light from the at least one light source to the hollow light channel and the at least one light sensor, and 
 wherein the cover is an annular cover, which surrounds the optical waveguide element in the form of a ring and in addition to the light sensor, covers additional electronic components mounted on the printed circuit board.